Παραπομπή APA

Tull, D. S. (1980). Marketing research: Measurement and method: a text with cases. Macmillan.

Παραπομπή Chicago Style

Tull, Donald S. Marketing Research: Measurement and Method: A Text with Cases. New York: Macmillan, 1980.

Παραπομπή MLA

Tull, Donald S. Marketing Research: Measurement and Method: A Text with Cases. Macmillan, 1980.